We build and open source AI tools that advance small models, harness engineering, avolving agents, responsible AI, MLOps and graph machine learning for the financial services industry. By contributing back to the open source ecosystem we help raise the bar for trustworthy AI in banking — and we give back to the community whose work powers our own innovation.
| Project | Description | License | Status |
|---|---|---|---|
gen-fraud-graph |
Synthetic fraud graph generator for training and benchmarking graph-based fraud detection models. Scales to 100M+ accounts. | Apache-2.0 | ✅ Active |
| More coming Q3 2026 | MLOps recipes · LLM evaluation harness · RAG benchmark suite · anonymisation toolkit | Apache-2.0 / BSD-3 | 🟡 In review |
All projects use synthetic or anonymised data only. No real customer information is published.
Our Open Source Programme Office (OSPO) runs a transparent two-track review for every project considered for public release:
- Fast Track — forks, generic tools, tutorials, datasets, SDKs without business logic. Reviewed by OSPO Lead with automated scans (SLA < 4 hours).
- Full Track — AI models, frameworks with IP, code that touched internal data. Reviewed by a FOSS Review Board (OSPO Lead + Legal + CISO + Architect). SLA 2-4 weeks.
Full policy: GOVERNANCE.md
We welcome contributions from everyone. Please read:
CONTRIBUTING.md— how to submit issues and pull requestsCODE_OF_CONDUCT.md— Contributor Covenant v2.1SECURITY.md— responsible disclosure- All contributors agree to our Contributor License Agreement (CLA) on first PR
- General open source / partnerships: opensource@gruposantander.com
- Security: security@santander.com
- Website: santander.com
- Careers in AI: santander.com/en/careers
Built with ❤️ by AI Labs · Banco Santander · Madrid 🇪🇸
Open code · Responsible AI · For the community